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| 基于相变与收缩耦合的1Cr12焊缝冷却动态力学行为研究 | |
| Alternative Title | Dynamic Mechanics Behaviors of 1Cr12 Weld Cooling Based on Coupling of Phase Transformation and Contraction |
许谦1,2 ; 胡广旭3; 董志波4; 任新星4; 方洪渊4
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| 2021-02-10 | |
| Source Publication | 中国机械工程
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| ISSN | 1004-132X |
| Volume | 32Issue:3Pages:341-347 |
| Contribution Rank | 1 |
| Abstract | 1Cr12钢焊后冷却收缩过程伴随着马氏体转变，从而使组织体积、力学性能以及塑性机制的发生演变，导致焊缝不仅受降温收缩引起的拉伸作用，还受固态相变的影响，其降温动态力学行为是固态相变与冷却收缩耦合的力学过程。因此，本研究建立了相变体积应变与混合相力学性能的固态相变模型，并同时考虑随动硬化与相变塑性的影响，开展了试验件纵向焊接残余应力的模拟验证。在此基础上，进一步分析了各因素对1Cr12钢焊缝冷却动态力学行为的影响。结果表明，模拟与试验相吻合，马氏体相变的体积膨胀、力学性能变化以及塑性机制均对焊缝收缩的动态力学行为具有一定影响，且各因素共同作用下焊缝纵向由收缩拉伸状态转为受压状态。 |
| Other Abstract | Considering the following hardening and transformation plasticity,the solid-state transformation model of volume strain and mixed-phase mechanics properties was established.The effects of various factors on the dynamic mechanics behavior of 1Cr12steel weld cooling were studied. The experiments of welding longitudinal residual stress were carried out,the results of tests are in good agreement with the simulation ones.It is shown that the volume expansions of martensitic transformation,the changes of mechanics properties and the plastic mechanism have influences on the dynamic mechanics behaviors of weld shrinkages,and the longitudinal stress of weld joint changes from contraction tensile states to compression states under the action of various factors. |
| Keyword | 固态相变 焊缝收缩力学 有限元方法 材料模型 |
| DOI | 10.3969/j.issn.1004-132X.2021.03.012 |
| URL | 查看原文 |
| Indexed By | EI ; CSCD ; 中文核心期刊要目总览 |
| Language | 中文 |
| WOS ID | CSCD:6888675 |
| CSCD ID | CSCD:6888675 |
| EI Accession Number | 20210809975879 |
| Citation statistics |
Cited Times:1[CSCD]
[CSCD Record]
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| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4693 |
| Collection | 射电天文研究室_天线技术实验室 110米口径全可动射电望远镜（QTT）_技术成果 |
| Corresponding Author | 董志波 |
| Affiliation | 1.中国科学院新疆天文台,乌鲁木齐,830001; 2.中国科学院射电天文重点实验室,乌鲁木齐,830011; 3.哈尔滨商业大学轻工学院,哈尔滨,150028; 4.哈尔滨工业大学先进焊接与连接国家重点实验室,哈尔滨,150001 |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | 许谦,胡广旭,董志波,等. 基于相变与收缩耦合的1Cr12焊缝冷却动态力学行为研究[J]. 中国机械工程,2021,32(3):341-347. |
| APA | 许谦,胡广旭,董志波,任新星,&方洪渊.(2021).基于相变与收缩耦合的1Cr12焊缝冷却动态力学行为研究.中国机械工程,32(3),341-347. |
| MLA | 许谦,et al."基于相变与收缩耦合的1Cr12焊缝冷却动态力学行为研究".中国机械工程 32.3(2021):341-347. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 许谦-2021-基于相变与收缩耦合的1C（2413KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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